xattr_user.c 1.1 KB

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  1. // SPDX-License-Identifier: GPL-2.0
  2. #include "reiserfs.h"
  3. #include <linux/errno.h>
  4. #include <linux/fs.h>
  5. #include <linux/pagemap.h>
  6. #include <linux/xattr.h>
  7. #include "xattr.h"
  8. #include <linux/uaccess.h>
  9. static int
  10. user_get(const struct xattr_handler *handler, struct dentry *unused,
  11. struct inode *inode, const char *name, void *buffer, size_t size)
  12. {
  13. if (!reiserfs_xattrs_user(inode->i_sb))
  14. return -EOPNOTSUPP;
  15. return reiserfs_xattr_get(inode, xattr_full_name(handler, name),
  16. buffer, size);
  17. }
  18. static int
  19. user_set(const struct xattr_handler *handler, struct user_namespace *mnt_userns,
  20. struct dentry *unused,
  21. struct inode *inode, const char *name, const void *buffer,
  22. size_t size, int flags)
  23. {
  24. if (!reiserfs_xattrs_user(inode->i_sb))
  25. return -EOPNOTSUPP;
  26. return reiserfs_xattr_set(inode,
  27. xattr_full_name(handler, name),
  28. buffer, size, flags);
  29. }
  30. static bool user_list(struct dentry *dentry)
  31. {
  32. return reiserfs_xattrs_user(dentry->d_sb);
  33. }
  34. const struct xattr_handler reiserfs_xattr_user_handler = {
  35. .prefix = XATTR_USER_PREFIX,
  36. .get = user_get,
  37. .set = user_set,
  38. .list = user_list,
  39. };